R
- Raab Crossroads
- Rabbitville
- Raber
- Raccoon
- Radioville
- Radley
- Radnor
- Raglesville
- Ragsdale
- Rahm
- Rainsville
- Raintown
- Raleigh
- Ramsey
- Randall
- Range Line
- Ranger
- Rapture
- Raub
- Ravenswood
- Ray
- Raymond
- Rays Crossing
- Raysville
- Reagan
- Redcuff Corner
- Reddington
- Redkey
- Redmon Park
- Reds Corner
- Reed Station
- Reelsville
- Rego
- Rehoboth
- Reiffsburg
- Remington
- Renner
- Reno
- Rensselaer
- Retreat
- Rexville
- Reynolds
- Rhodes
- Riceville
- Richland
- Richland Center
- Richland City
- Richmond
- Richvalley
- Riddle
- Ridertown
- Ridgemede
- Ridgeport
- Ridgeville
- Ridgeway
- Rigdon
- Riley
- Rileysburg
- Ringwald
- Ripley
- Rising Sun
- Rivare
- Riverdale
- River Forest
- River Haven
- Riverside
- Riverton
- Riverview
- Riverview
- Riverwood
- Roachdale
- Roadman Corner
- Roann
- Roanoke
- Roanoke Station
- Roberts
- Rob Roy
- Rochester
- Rock Creek
- Rockdale
- Rockfield
- Rockford
- Rockford
- Rock Hill
- Rocklane
- Rockport
- Rockport
- Rockville
- Rocky Ripple
- Rogers
- Rogersville
- Roland
- Roll
- Rolling Acres
- Rolling Hill Estates
- Rolling Hills
- Rolling Prairie
- Rome
- Rome City
- Romona
- Rosebud
- Rosebud
- Roseburg
- Roseburg
- Rosedale
- Roseland
- Roselawn
- Ross
- Rosston
- Rossville
- Round Grove
- Royal Center
- Royalton
- Royerton
- Rugby
- Rumble
- Runnymede
- Runyantown
- Rural
- Rush Creek Valley
- Rushville
- Rusk
- Russellville
- Russiaville
- Rustic Hills
- Rutland